test: add eslint-plugin-jest

.eslintrc.js

@@ -10,6 +10,7 @@ module.exports = {
   extends: [
     'eslint:recommended',
     'plugin:@typescript-eslint/eslint-recommended',
+    'plugin:jest/recommended',
     'plugin:prettier/recommended',
   ],
   env: {

lib/__tests__/does-not-have-attribute.ts

@@ -52,7 +52,7 @@ describe('assert.dom(...).doesNotHaveAttribute()', () => {
     ]);
   });
 
-  test('fails for wrong content (string value)', () => {
+  test('fails for wrong content (boolean value)', () => {
     assert.dom('input').doesNotHaveAttribute('required');
     assert.dom(document.querySelector('input')).doesNotHaveAttribute('required');
 

lib/__tests__/is-visible.ts

@@ -32,21 +32,6 @@ describe('assert.dom(...).isVisible()', () => {
         },
       ]);
     });
-
-    test('fails if element is missing', () => {
-      document.body.innerHTML = '<h1 class="baz">foo</h1>bar';
-
-      assert.dom('h2').isVisible();
-
-      expect(assert.results).toEqual([
-        {
-          actual: 'Element h2 is not visible',
-          expected: 'Element h2 is visible',
-          message: 'Element h2 is visible',
-          result: false,
-        },
-      ]);
-    });
   });
 
   describe('custom messages', () => {

package.json

@@ -72,6 +72,7 @@
     "ember-try": "2.0.0",
     "eslint": "8.30.0",
     "eslint-config-prettier": "8.5.0",
+    "eslint-plugin-jest": "^27.1.7",
     "eslint-plugin-prettier": "4.2.1",
     "jest": "27.5.1",
     "lerna-changelog": "2.2.0",